System for adjusting at a distance guns, searchlights, or other apparatus



ept. as. 1924. 1,508,796

P. KAMINSKI SYSTEM FOR ADJUSTING AT A DISTANCE GUNS, SEARCHLIGHTS, OR OTHER APPARATUS Filed May 12. 1921 2 sheets-sum 1 WWW ' Sept. 16 1924. 1,508,796

P. KAMINSK! SYSTEM FOR ADJUSTING AT A DISTANCE GUNS, SEARCHLIGHTS,-OR OTHER APPARATUS Filed May 12. 192i 2 8heetsShee 2 Patented Sept. 16, 1924.

UNI TED STATES 1,5 ,1 PATENT OFFICE.

PAUL W831, OF BERLIN-PANKOW, GERMANY. ASSIGNOR TO SIEMENS & HALSKE,

.LKTIENGESELLSOHAFT, POBATION OF G.

015 BIEMENSSTADT, NEAR BERLIN, GERMANY, A. COR- srsrm non ADJUSTING AT A msmncn cons, smncnucnrs, on. ornnn.

nrranarus.

Application filed May 12, 1921. Serial No. 468,866.

(GBAITED UNDER THE YBOVISIONB OF THE ACT OF MARCH 3, 1821, 418111. L, 181 3.)

To all whom it may com-em:

Be it known that '1, PAUL KAMINSKI, a citizen of the German Empire, residing at Berlin-Pankow, Germany, have invented certain new and useful Im rovements in Systems for Adjusting at a istance Guns, Searchlights, or Other Afipparatus, of which the following is a sgeci cation.

In systems for a justing at a distance us, search lights or other apparatus it as already been proposed to efiect the supply of motor current for the different kin s of adjustment, as coarse and fine adjustments of the objects to be adjusted, by a difi'erential relay which is influenced by corresponding receivers.

Since, however, this influence is exerted by all receivers simultaneously it would be impossible to start the motor for correcting the adjustment first efiected in view of the simultaneous excitation of both windin by the o posing effect of the receivers. t-

is, there ore, necessary to insert resistances into the relay circuit.

Accordin to the invention this disadvantage is avoi ed by providing a device at the receiver for one kind of adjustment, e. g. for coarse adjustment, this device starting the motor for that kind of adjustment, and by simultaneously, during the period of its influence, hindering the receiver of the second i kind of adjustment from being efiective, e.

g. b a switch disconnecting the circuit, contro ed by the receiver of the second kind of adjustment. Said switching device may be arran ed onl at the recelver for the one kind of adjustment, preferably for coarse adjustment, whereby 1n the working position of said device current is being supplied to the motor e. g. for coarse ad ustment, whereas in the normal osition of said device the current is supplie to the motor for fine. adjustment. In this case the adjustment is efi'ected directly over the corresponding receiver. However, a separate switching device may be connected with each receiver. In this case the switching device of the receiver for coarse adjustment influences the switching device for the fine ad'ustment.

the dra 1;: accompanying this specification and forming part thereof, my invention is shown in a purely diagrammatic form in which 7 Fig. 1 shows an example of my inventlon 1n WhlCh two motors are used to adjust the object to be controlled;

Fig. 2 shows a similar form in which only one motor is controlled by both kinds of ad ustment;

1g. 3 shows an eddy current brake; and

Fig. 4 shows the arrangement of Fig. 2'

with another system of connection for the eddy current brake.

In the system accordin to Fig. 1,- the transmitting device G consists of two transmitters 9,, g, which are connected with each other in such a way that the one performs several revolutions, whereas the other for covering the entire range only makes one revolution. The two transmitters g,, g, of which 9, is designed for coarse adjustment and g, for fine adjustment cause a synchronous ad ustment of the receivers e,, 6,, which in turn eflect starting of the motors m,, m. respectively. tures of the receivers e,, e, a contact 8,, s, is provided which is connected with the wire a of a current supply circuit and which contact, when adjusting the receiver armatures, will in each case be brought into connection respectively: with other contacts 1,, r, or 1,, an, arranged upon discs 10,, 70,, respectively, whereby the motor circuits will become closed according to the direction of revolution of the receiver armatures. The motor m, for coarse adjustment is operated by excitmg one of its relays R, or R, in the circuits a, 8,, 1,, R,, 6,, or, a, 8,, 7-,, R respectively, w ereby the relay armatures 1 or 2 are attracted and the contacts 3, 4, 5, 6 or 7, 8, 9, 10, respectively, are closed. As the field of the motor m, is constantly energized from the net as shown in the figure, the motor will start as soon as the circuit of itsarmature is closed. If the relay R, has been energized in the aforementioned manner and has attracted its armature, the circuit of the arma- On the shafts of the armam,, right brush of the armature, contacts 5, 6, b, pole. Whereas if the relay R attracts its armature the circuit of the motor m is as follows: pole, a, contacts 7, 8, right brush of the motors armature, left brush, contacts 9, 10, b, pole.

As the direction of the current in the armature of motor m is reversed by the two relays, the motor will also change the direction of revolutions. The motion of the motor m, is transmitted to the object to be adjusted by a differential gear P. Together with the object to be adjusted discs 70,, is, are rotated by a suitable gearing T until the contacts 8 Z, or 8,, 4",, respectively, are opened and the motor is stopped accordingly. Though the receivere for fine adjustment is simultaneously actuated with the receiver e thus closing-the contacts 8 Z, or 8,, 7, the motor m, for fine adjustment is not operated since its starting circuit is broken at the other armature contacts 11 or 12 of the relays R, or R The coarse adjustment having been effected and relay R, or R been deenergized accordingly, contact 11 or 12 referred to is closed when the motor m is started and the fine adjustment of the object is effected by means of the differential gear P. The motor m has a system of connections different from that of motor m The armature of motor m is constantly energized from the net as follows: pole, a resistance w armature m 7), pole. The left and the right winding of the field of the motor wt, for the fine adjustment correspond in some-way to the relays R R of the coarse adjustment. Only one of the windings of the field is energized when the mo tor m is operatin When the motor on, has stopped and t e contact s 13 of the receiver 6 is closed the circuit-of the field of the motor m is as follows: pole, a, 8 7' right-hand windin of the field, relay B, contacts 11 an 12 of the released relays R and R,,, Z; pole. Whereas if the contact 8 Z, is closed, the circuit will be: pole, a, s 1 left-hand winding of the field, relay 13, contacts 11 and 12, b, pole. By energizing the right or the left winding of the field, the magnetic poles are changed and the motor m therefore will revolve in one or the other direction. This operation takes place until the contacts 8,, Z or s 7",, are broken by the rotation of the disc is, above referred to and the motor current circuits are interrupted.

Since the transfer of the movement of the motor m, to the object to be adjusted is effected by means of a smaller gear-ratio than that of the motor m for fine adjustment the latter may be of much smaller dimensions than the former. With a view to preventing the flow of the entire closed circuit current into the small motor it is,

therefore, advisable to insert a resistance w in series with the armature of the small motor which when exciting the stator winding of this motor by the operation of the receiver 6 and of the contacts 11, 12 is cut out of circuit by means of armature contacts 13, 14 of a relay B put in the motor current circuit.

Referring to the system shown in Fig. 2, only one motor m is employed for adjustlng the objects, said motor being thrown into circuit for coarse adjustment by means of the relays R R actuated by the receiver 6, and for fine adjustment by means of the relays R R actuated by the receiver The field of the motor m is constantly energized from the net. If one of the relays R R is energized by the receiver 6 the circuit of the armature m corresponds to that of the motor m, described in Fig. 1. The relays R and R, do not operate when the relays R and R are being excited, since their exciting circuits are broken at the armature contacts 15 and 17, respectively. The circuits of the relays R R when the relays R R are deenergized are as follows: pole, or, contacts 15 and 17 of the released armatures R -R contacts of the receiver 6 relays R or R pole. When the relay R, has attracted its armature, the circuit of the armature of motor m is closed by way of: +pole, a, left-hand contact of the relay armature, right brush of the motor, left brush, resistance 'w right-hand contact of the attracted armature, b, pole. If the relay R attracts its armature, the direction of the current is reversed as follows: pole, a, contact 19, resistance 10,, left brush of armature m right brush, right-hand contact of the attracted armature, b, pole. When operating the motor m for fine adjustments a series resistance w,-is thrown into circuit by means of the working contact 19 or 20 of the operating relay R or R IQSPCCtlXClY, with a View to reducing the number of revolutions of the motor m the stationary exciting windings of which are permanently connected with the net work a, Z). In the normal positions of the relay armatures the motor armature m is preferably shortcircuited by means of the contacts 16 and 18 over the resistance w In addition an eddy current brake S may be provided the magnet 7: of which is energized in the circuit a, 15, 17, k, 21, 22, b, after all relays have been deenergized.

The action of eddy current brake S is shown in Fig. 3, the shaft of motor m car ries a metallic disk S for instance of copper, aluminum or any other suitable material, rotating between the two poles of the magnet is, the circuit of which is shown in Fig. 2.

Instead of the relays R other switch gears may be used without changing the scope and ideas involved in the present invention.

ascents Each of the motors 1a,, m,, er as may also influence the object to be a justed without an intermediate differential gear as is shown for example in U. S. Patent No. 1,123,067, concerning a similarly operating system. If one single motor is used for both kinds of ad'ustment the s eed of rotation may be re need for fine a justment by the eddy current brake, the magnet I: of which, then, is irectly connected with the source of current by the line 23, shortcircuitin the contacts 21, 22 as shown in Fig. 4. he transmitting device may be provided with transmitters which are independently adjustable from each other as shown in my copending application Serial No. 439,649 filed J anuary 24th, 1921, or onl a single transmitter may be rovided whic is adapted for both kinds 0 ad'ustment as shown for instance in the British Patent No. 28,822 of 1913.

I claim: v

1. In a sialling system for the telecontrol of motor operated objects, two sets of electrical transmitters and receivers adapted to trsmit difierent kinds of object adjustments, means, electrically controlled in the adjustment of one of said receivers, a apted to control the motor operation, other means electrically controlle by the adjustment of the other of said receivers also adapted to control the motor operation, and contact means suitably controlled by said first-named means and adapted to make operative said other means to permit both controlling means only successively to cause the motor operation according to the adjusted positions of said receivers.

2. In a signalling system for the telecontrol of motor operated objects, two sets of electrical transmitters and receivers adapted to transmit difierent kinds of object adjustments, a switching device electrically controlled by the adjustment of one of said ivers adapted to control the motor operation, means electrically conmit said switching device and said firstnamed means only successively to cause the motor operation according to the adjusted positions of said receivers.

3. In a signalling system for the telecontrol of motor operated objects, two sets of electrical transmitters and receivers adapted to transmit different kinds of object wa of one of said receivers adapt to control the motor operation, means electrically controlled by the other of said receivers also adapted to control the motor operation, and contact means suitably controlled by said switching relays to permit at first said switching relays to cause the motor operation according to the adjusted position of one receiver and then to permit said firstnamed means to cause the motor operation according to the adjusted position of the other receiver.

4. In a si alling system for the telecontrol of ob ects, electrical transmitters and receivers for transmittin coarse and fine adjustment positions for t e object, a motor for adjusting the several positions of the object, switching relays for said motor and circuit connections between said relays and said motor for causin' the motor to coarsely or finely adjust the ob ect, circuit connections between said receivers and said relays for controlling the relay operation, and a resistance in the motor circuit for fine adadjustments, switching relays energized by justment, controlled by the relays actuated by the coarse'receiver, said last-named relays, when energized, closing the motor circuit for coarse adjustment and opening the motor circuit for ne ad 'ustment.

, In testimony whereof afiix my signature.

PAUL NSKI. 

